20 



BULLETIN 646, U. S. DEPARTMENT OF AGRICULTURE. 



References.— Farmers' Bulletins 874, 272*, 33 1*, 41 1 , 566, 599*. Write 

 to the State agricultural college for publications relating to the subject. 



Fig. 10.— Grazing rye. 



Practical exercises. — (1) Students carrying on home projects with 

 pigs should provide pasturage and supplementary grazing. At 

 least 1 acre of a good permanent pasture should be provided for the 



Fig. 11.— Grazing rape. 



brood sow and her litter of pigs. Seasonal supplementary crops 

 should also be grown. At least three-tenths of an acre of each crop 

 should be provided for each mature hog. , 1 



* May be obtained only from the Superintendent of Documents, Government Printing Office, Wash- 

 ington, D. C. 



